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Connection Of The Ac Cabling - Victron energy MultiPlus Compact 12/2000/80-50 120V Handleiding

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4.3 Connection of the AC cabling

This is a Safety Class I product (supplied with a protective grounding terminal).
Uninterruptible protective grounding must be provided at the AC input
and/or output terminals and/or chassis grounding point located externally
on the product.
The MultiPlus is provided with a ground relay (relay H, see appendix B) that
automatically connects the Neutral output to the chassis if no external AC
supply is available. If an external AC supply is provided, the ground relay H will
open before the input safety relay closes. This ensures the correct operation of
an earth leakage circuit breaker that is connected to the output.
─
In a fixed installation, an uninterruptable grounding can be secured by
means of the grounding wire of the AC input. Otherwise the casing must
be grounded.
─
In a mobile installation (for example, with a shore current plug), interrupting
the shore connection will simultaneously disconnect the grounding
connection. In that case, the casing must be connected to the chassis (of
the vehicle) or to the hull or grounding plate (of the boat).
In case of a boat, direct connection to the shore ground is not recommended
because of potential galvanic corrosion. The solution to this is using an isolation
transformer.
The mains -input & output terminal connector can be found on the bottom of the Multi
Compact, see appendix A.
AC-in
•
The AC input must be protected by a fuse or magnetic circuit breaker rated at 50A
or less, and cable cross-section must be sized accordingly. If the input AC supply
is rated at a lower value, the fuse or magnetic circuit breaker should be downsized
accordingly.
AC-out
•
With its PowerAssist feature the Multi can add up to 2kVA (that is 2000 / 120 = 17A) to
the output during periods of peak power requirement. Together with a maximum input
current of 50A this means that the output can supply up to 50 + 17 = 67A.
An earth leakage circuit breaker and a fuse or circuit breaker rated to support the
expected load must be included in series with the output, and cable cross-section
must be sized accordingly.

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